October 2023 - Roundtable

Raspberry Pi OS 12 bookworm and Wayland - no screen saver?
by Gilbert Detillieux 06 Nov '23

06 Nov '23

So, with all the hype around the new Raspberry Pi 5 (still waiting for availability), and the new OS version, I thought I'd give the OS a try on my Pi 400, and see how things look with the new Wayland-based GUI. One strange thing I noticed (other than the slight increase in CPU use and slightly higher CPU temperature) is that there's no screen saver/blanker enabled by default. Stranger still is there doesn't seem to be any way to enable it, at least not that I've been able to find. The old X11/Xorg-based screen savers definitely don't work with Wayland, and I don't want to turn off my monitor (and have to remember to do so) every time I'm done using the Pi. So, does anyone know how I can enable screen blanking in Wayland? (Preferably with Pi OS and/or Debian 12 bookworm, but any Wayland-related info would be appreciated.) If that doesn't work, I may find myself reverting back to Xorg. Thanks, Gilbert -- Gilbert Detillieux E-mail: Gilbert.Detillieux(a)umanitoba.ca Computer Science Web: http://www.cs.umanitoba.ca/~gedetil/ University of Manitoba Phone: 204-474-8161 Winnipeg MB CANADA R3T 2N2

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EXTER^H^H^HCOMMUNICATE
by Adam Thompson 07 Oct '23

07 Oct '23

You know who you are... https://mastodon.social/@RustyBertrand/111194928749943458

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CVE-2023-41064
by Trevor Cordes 06 Oct '23

06 Oct '23

Fun. https://www.tenable.com/blog/cve-2023-41064-cve-2023-4863-cve-2023-5129-faq… If you have an Apple device, it must be updated. If it's no longer supported/updated, throw it away. Anyone can send you a text or imessage (whatever that is) with a crafted webp image and p0wn your whole device: no clicks or user interaction required. Same bug in Chrome: update your Chrome. If you cannot on that device (i.e. Win7) then throw it away or find a new OS/browser. But at least you'd have to visit a malicious web page. Also affects linux webp libraries, so patch your stuff and restart any dynamically linked browsers/clients.

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MUUG Meeting, Tuesday, Oct 3, 7:30pm (In-person/Hybrid Meeting) -- libheif
by Trevor Cordes 03 Oct '23

03 Oct '23

The Manitoba UNIX User Group (MUUG) will be holding its next monthly meeting IN PERSON, on Tuesday, October 3rd, at 7:30pm. libheif Wyatt Zacharias will provide a brief overview of the "new" high efficiency image file format (HEIF) using some of the native tools provided by the libheif library as well as third party applications to work with this new format. Additionally Wyatt will demonstrate how to build the latest version of the library to add support for HEVC encoded images created by newer devices. Where to find the Meeting: Fortress Software Inc., 350 Keewatin St -- Unit #2 We conntinue with our in-person meeting location. Brad Vokey has graciously let us use his work office for our in-person meetings for the foreseeable future. The meeting room will be open by 7:00 pm, with the actual meeting starting at 7:30 pm. If driving, enter the lot using the most north east entrance and drive around to the south west corner of the building (see route in map detail on poster linked below). You can use any of the free, ample, and safe parking spots that say "reserved" in front of units #1 through #4 before entering unit #2. Bus stops #30814 and #30880 (route 77) are only 150 meters away. The last bus leaves for Polo Park at 10:15 pm and for Garden City at 10:31 pm. Logan Ave. bus routes #19, #26, and #27 are a 600 meter (8 minute) walk to the south. For those unable or preferring not to attend in person, the meeting will also be available online, using BBB as usual. Stay tuned to our muug.ca home page for the official URL, which will be made available about a half hour before the meeting starts. (Reload the page if you don't see the link, or if there are issues with connecting.) *Date Change* Please note that the meeting this month, and for the foreseeable future, is on the first Tuesday of each month. The group now holds its meetings at 7:30pm on the *first* Tuesday of every month from September to June. (There are no meetings in July and August.) Meetings are open to the general public; you don't have to be a MUUG member to attend. For more information about MUUG, and its monthly meetings, check out our web server: https://muug.ca/ Help us promote this month's meeting, by putting this poster up on your workplace bulletin board or other suitable public message board, or linking to it on social media: https://muug.ca/meetings/MUUGmeeting.pdf

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